Improvement in shaft-coupling



einen fsm anni WILLIAMv E. LONDONI or' CINCINNATI, OHIO, Ar'ssi'eNoR To J. A. FAY a eo., er SAME PLACE.

Letters Pate'ntNo. 7D,869, dated November 12, 1867.

IMPROVEMENT IN SHAFT-COUPLING.

ilge rlpmlel riferita tu iu time tetten zitmt mit mating tart uf tte same.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, WILLIAM E. LONDON, of Cincinnati, in the county of Hamilton, and State of Ohio, have invented a new and useful Improvement in Couplings for Shafting; and I do hereby declare the following to be.

a full and exact description of the same, reference beinghad to the accompanying drawings, forming a part of this specification, in whichu Figure 1 is a side elevation of a coupling with my improvement.

Figure 2 is a. longitudinal section' through the same. v

Figure 3 an end view pf iig. 1, and

Figure 4 a cross-section through the centre.

Similar letters of reference on the dierent figures indicate corresponding parts.

The nature of this invention consists in providing a. compressing device in one of the halves of a common plate-coupling, so that'it can be readily removed from the shaft for any necessary purpose, while the other part will remain keyed firmly to its place; and in the mechanism for accomplishing this result, as illustrated in the drawings and described in this specification.

l It often becomes necessary to remove couplings from shafting to put on or remove pulleys, and for other purposes. When couplings are rmly keyed on it, is diicult to remove them, and incurs a liability of breaking them in driving. The it on the shaft is also destroyed by a few removals, and the faces are'liable-to run out of true, causing bends in the shaft; and the couplings, too, often come loose, with other diiculties familiar to mechanics. In couplings where the shaft is connected by compressing-sleeves in both ends of the coupling, it requires the most perfect workmanship to insure a true-running shaft, while in most cases the stitfening eifect Aof the large flanges is lost in couplings'of that class. To meet these wants, and obviate the objections referred.'

to, is the object of the invention herein described.

To enable others skillediu the art to make and use my invention, I will proceed to describe the manner of constructing and operating the same with the aid of the drawings.

One-half of the coupling b is constructed in the common form, and keyed firmly upon the shaft, provided with ashallow socket, S S, or close-fitting bolts, to keep the faces true in the usual manner. The other half, Z7, is provided with the arrangement for clamping the shaft, so as to be readily removed and attached. The hub is bored out in a taper form, as' shown in gf, enough larger than the shaft to receive the conical sleeve A, and is threaded on its exterior to receive the nut C. The cone A is split on one side to allow it to close concen' trielally upon the shaft', when pressed into the hub by means of nut C, which is revolved by means of a wrench fitting into holes o o.

To apply the coupling, the part b is first keyed on with a strong hey, e, tig. 2, and faced off perfectly true in a lathe, and is allowed to remain upon the shaft at all times, each piece of shafting having one of the solid and one of the detachable halves, so that pulleys and fittings can be put on from the end with adjustable clamping hub, as hereinbefore mentioned. The other half b is bolted firmly to part Z1', the shaft inserted and fastened by means of the conical sleeve A and nut C, as shown. i

Having thus described the nature of my invention, the manner of constructing and operating the same, what I regard as new, and desire to secure by Letters Patent, is i I claim a shaft-coupling, constructed as herein specified, to wit: one-half keyed on firmly in the usual manner, the other half provided with 'an adjustable clamping device, as herein specified, and for the purposes described.

W. E. LONDON.

Witnesses:

W. S. KELLEY, G. V. Onion. 

